Flora of the Hawaiian Islands
Dicotyledon Literature for Delonix regia
Wagner et al., 1990, 1999.
   Fabaceae -- The Pea Family Bibliography
      Delonix regia

Common name(s): `ohai `ula, flamboyant, flame tree, royal poinciana
General Information
DistributionEndemic and rare in Madagascar, widely cultivated throughout the tropics as an ornamental.In the Hawaiian Islands, naturalized on Moloka`i.

Trees 5-10(-15) m tall, with a broad sprawling crown, bark grayish, smooth.
Leaves with 11-20(-25) pairs of pinnae, leaflets 10-25 pairs per pinna, elliptic, 5-10(-15) mm long, 2-5 mm wide, the rachis with pubescent projections between the pinnae, stipules pinnate with 4-5 segments; petioles 1/4-1/3 length of blade.
Flowers 8-15 cm in diameter, pedicels articulated; sepals yellowish externally, red within; petals crimson or scarlet, but one larger, 4-7 cm long, white to yellow with red blotches, fading red.
Pods oblong, flat, 20-70 cm long, 3-7 cm wide, dehiscent usually after falling to the ground.
Seeds 18-45, yellow or dark brown, subcylindrical, 20-25 mm long, 6-8 mm in diameter.
2n = 24, 28.